Your car burns gasoline as you drive up a mountain road. What energy transformation is taking place?

Answer:

vf = 7 m/s

Explanation:

3.

The final velocity of the ball right before it hits the ground can be found by using the third equation of motion:

\(2gh = v_f^2 - v_i^2\)

where,

g = acceleration due to gravity = 9.81 m/s²

h = height = 2.5 m

vf = final velocity = ?

vi = initial velocity = 0 m/s

Therefore,

\(2(9.81\ m/s^2)(2.5\ m) = v_f^2 - (0\ m/s)^2\\v_f = \sqrt{49.05\ m^2/s^2}\\\)

vf = 7 m/s

Answer:

The answer is thallium.

Explanation:

A rigid insulated rod, with two unequal charges attached to its ends, is placed in a uniform electric field E. The rod experiences a net force to the left and a counterclockwise rotation. The correct option is B.

The unequal charges attached to the ends of the rod experience a force due to the uniform electric field. The upper charge experiences a force to the left, while the bottom charge experiences a force to the right.

According to Coulomb's Law, the magnitude of the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Since the upper charge is twice the magnitude of the bottom charge, the force on the upper charge will be twice as strong.

Therefore, the net force on the rod will be to the left, since the force on the upper charge to the left is greater than the force on the bottom charge to the right. Additionally, the torque on the rod will be counterclockwise since the forces are acting in opposite directions and creating a rotational force.

Thus, the correct option is (B) net force to the left and a counterclockwise rotation.

For more such questions on Net force.

https://brainly.com/question/31045483#

#SPJ11

Answer:

i guess u could pick "B" :)

Explanation:

The power dissipated in the light bulb if it carries a current of 3i is 9p.

The power dissipated by a light bulb is given by the equation P = I²R, where I is the current flowing through the bulb and R is its resistance. Since the same light bulb is being used, its resistance remains constant.

When the current flowing through the bulb is increased to 3i, the power dissipated is given by P' = (3i)²R = 9i²R = 9P,

where P is the power dissipated when the current was i.

Therefore, the power dissipated in the light bulb is multiplied by a factor of 9 when the current is increased to 3i.

Assuming the resistance of the light bulb remains constant, we can use Ohm's law to find the new current when the current is tripled. Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance. Therefore, when the current is tripled, the voltage across the bulb will also triple since the resistance remains constant.

To know more about the Light bulb, here

https://brainly.com/question/2288858

#SPJ4

In a fire piston, the temperature of the gas inside the piston increases due to adiabatic compression.

In physics, pressure is a measure of the force per unit area that a fluid (liquid or gas) exerts on its surroundings. It is defined as the force F acting perpendicular to a surface divided by the area A over which the force is distributed: pressure = F/A. The SI unit of pressure is the Pascal (Pa), which is defined as one Newton per square meter (N/m²). Other common units of pressure include pounds per square inch (psi), atmospheres (atm), and bar (bar). Pressure is an important concept in many areas of physics, including fluid mechanics, thermodynamics, and atmospheric science. It describes the behavior of fluids in pipes and channels, the operation of hydraulic systems, and the behavior of gases in sealed containers. The pressure of a fluid is related to its density and temperature, and can be influenced by factors such as gravity, elevation, and the motion of the fluid itself.

Here,

When the piston is rapidly pushed down into the cylinder, it compresses the gas inside the cylinder. This rapid compression causes the gas molecules to collide with each other more frequently and with greater force, which in turn increases the temperature of the gas.

Because the compression is adiabatic (i.e., no heat is allowed to enter or leave the system), the increase in temperature is due solely to the work done on the gas by the piston. This increase in temperature is known as adiabatic heating.

The fire piston is a simple but effective tool for starting a fire in the wilderness, and it demonstrates the principles of adiabatic compression and the relationship between pressure, volume, and temperature in a gas.

To know more about pressure,

https://brainly.com/question/30036175

#SPJ4

Answer:

Please state the statements in the comment so I can help

Answer:

O c.the force of the fish tail on the water..........

Increasing the distance between an electromagnet and the compass will cause the observed effect of the compass to decrease in strength

The strength of the magnetic field produced by an electromagnet decreases as the distance from the electromagnet increases. This means that if the distance between the electromagnet and the compass increases, the magnetic field that the compass is experiencing will weaken.

As a result, the observed effect of the compass will decrease in strength as the distance between the electromagnet and the compass increases.

Read more on observed effect here:https://brainly.com/question/28146505

#SPJ1

Answer:

c

Explanation:

because what else can the laser be used for

Answer:

Because the zinc is reluctant

Explanation:

A leclanche cell contains a conducting solution (electrolyte) of ammonium chloride, a cathode (positive terminal) of carbon, a depolarizer of manganese dioxide (oxidizer), and an anode (negative terminal) of zinc (reductant).

As the Zn2+ ions move away from the anode, leaving their electrons on its surface,

Zn → Zn2+ + 2e−

the anode becomes more negatively charged than the cathode. When the cell is connected to an external electrical circuit, the excess electrons on the zinc anode flow through the circuit to the carbon rod, the movement of electrons forming an electric current.

Deceleration is the opposite of acceleration and refers to the slowing down of an object's speed. Therefore, the answer is b. negative.

When an object is decelerating, its acceleration is negative because it is moving in the opposite direction to its initial velocity. For example, when a car is moving forward and then applies the brakes, it starts to slow down. The acceleration of the car in this case is negative because it is moving in the opposite direction to its initial velocity, which was forward. Deceleration is an important concept in physics as it helps us understand how objects move and change their speed. It is also important in fields like engineering and transportation where deceleration rates need to be calculated to ensure the safety of people and equipment. In summary, deceleration is the negative acceleration of an object, which refers to the slowing down of its speed.

learn more about speed here

https://brainly.com/question/3370926

#SPJ11

It is going to reach 4.64 m/s when it reaches the lowest point.

Simple Pendulum:

An ideal pendulum consists of a point mass suspended by a weightless inextensible perfectly flexible thread and free to vibrate without friction.

At an intermediate position, the bob has kinetic energy and potential energy and the sum of both energies remains constant throughout the swing.

So when the pendulum will reach its lowest point then there is a conservation of energy.

That is,

Potential energy = Kinetic energy

mgh= 1/2 mv²

0.7 × 9.8 × 1.1 = 1/2 × 0.7 × v²

v = 4.64 m/s

Therefore it will reach 4.64 m/s when it reaches the lowest point.

To know more about the simple pendulum refer to the link given below:

https://brainly.com/question/26449711

#SPJ4

Explanation:

this might help you i think so

Answer: Organ failure is when a major organ stops working. Major organs all have important jobs to keep the body alive. Each organ counts on the other ones to keep the body working. If one of these organs stops working, the patient will not be able to survive without the help of very strong medicines and/or machines.

Explanation:

Answer:

Organ failure is when a major organ stops working. Major organs all have important jobs to keep the body alive. Each organ counts on the other ones to keep the body working. ... If one of these organs stops working, the patient will not be able to survive without the help of very strong medicines and/or machines.

Explanation:

The volume of a piece of cork cannot be measured by water displacement because cork will float.

When a piece of cork is submerged in water, it displaces an amount of water equal to its own volume. This principle, known as Archimedes' principle, allows us to measure the volume of solid objects by using water displacement. However, cork is less dense than water, causing it to float on the surface rather than sinking. As a result, the traditional water displacement method cannot accurately measure the volume of cork.  An approach could involve submerging the cork in a liquid with a known density and measuring the change in liquid level, allowing for the calculation of the displaced volume. It is important to adapt measurement techniques to the properties of the material being measured. While water displacement is a commonly used method for denser materials, it is not suitable for materials like cork due to their buoyancy. By employing appropriate measurement methods, we can accurately determine the volume of cork and other similar substances.

Learn more about float here:

brainly.com/question/14809254

#SPJ11

Answer:

\(\huge \boxed{6.948 \%}}\)

Explanation:

Volume of solute (Alcohol) ⇒ 5.6 ml

Volume or solvent (Water) ⇒ 75 ml

Total volume of solution ⇒ 5.6 ml + 75 ml ⇒ 80.6 ml

\(\displaystyle \sf Concentration \ of \ solution \ (\%)= \frac{Volume \ of \ solute}{Volume \ of \ solution} \times 100\)

\(\displaystyle \sf Concentration \ of \ solution \ (\%)= \frac{5.6}{80.6} \times 100=\frac{5600}{806} = 6.947891\)

Answer: The infra red waves is located between microwave and visible light based on their WAVELENGTH and FREQUENCY of occurrence.

Explanation:

Electromagnetic waves are those waves that do not require or need a material medium for its propagation, but they are able to travel through a vacuum. They exhibit or show all properties associated or connected with light. They are undeflected in electric and magnetic fields. These electromagnetic waves are arranged in order of their FREQUENCY and WAVELENGTHS which is known as ELECTROMAGNETIC SPECTRUM.

FREQUENCY is defined as the number of cycles which the wave completes in one second and is measured in Hertz(Hz). While WAVELENGTH is defined as the distance between two successive crests or troughs of waves which is measured in meter (m).

The electromagnetic spectrum is made up of the following rays which is arranged from the biggest wavelengths to the smallest:

--> Radiowaves

--> microwave :

--> infrared rays:

--> visible light:

--> ultraviolet rays

--> x-rays and

--> Gamma rays.

According to the arrangement of the spectrum above, the microwave has a higher wavelength and frequency than the infrared rays, while the visible light has a lower wavelength and frequency than the infrared rays.

The charge of the particle should be approximately 0.0206 Coulombs, with the sign determined by the direction of the electric field.

To determine the charge of the particle needed for it to remain stationary in the downward-directed electric field, we can equate the gravitational force with the electric force acting on the particle.

The gravitational force is given by: F_gravity = m * g. The electric force is given by: F_electric = q * E

Where:

m is the mass of the particle (1.44 g),

g is the acceleration due to gravity (9.80 m/s²),

q is the charge of the particle, and

E is the magnitude of the electric field (700 N/C).

For the particle to remain stationary, the electric force and gravitational force must be equal: q * E = m * g. Rearranging the equation, we can solve for q: q = (m * g) / E. Substituting the given values: q = (1.44 g * 9.80 m/s²) / 700 N/C. Calculating the value, we find: q ≈ 0.0206 C

The charge of the particle should be approximately 0.0206 Coulombs, with the sign determined by the direction of the electric field.

To know more about electric field, refer here:

https://brainly.com/question/30544719#

#SPJ11

Answer:

At 23.5 deg north of the equator this person would see the sun directly overhead at the summer solstice at noon

Answer:

gamma, ultraviolet. infrared,  microwave

gamma, ultraviolet. infrared,  microwave are the electromagnetic spectrum.

The range of all EM radiation types is known as the electromagnetic (EM) spectrum.

The visible light from a bulb in your home and radio waves from a radio station are two examples of electromagnetic radiation. Radiation is energy that moves and disperses as it does.

The range of electromagnetic radiation's frequencies, along with their corresponding wavelengths and photon energies, is known as the electromagnetic spectrum.

Microwaves, infrared light, ultraviolet light, X-rays, and gamma rays are the other EM radiation types that make up the electromagnetic spectrum.

Therefore, gamma, ultraviolet. infrared,  microwave are the electromagnetic spectrum.

To learn more about Electromagnetic spectrum, refer to the link:

https://brainly.com/question/23727978

#SPJ2

(1) the time for the object to reach the ground is 1.68 s.

(2) The two times that the object reaches 8m is 3.63 s and 0.45 s

The given parameters;

(1) The time taken for the object to reach the ground is calculated as;

\(h = ut + \frac{1}{2} gt^2\\\\24 = 6t + 0.5\times 9.8t^2\\\\24= 6t + 4.9t^2\\\\4.9t^2 + 6t - 24 =0\\\\solve\ the \ quadratic \ equation \ using \ formula \ method;\\\\a = 4.9, \ b = 6, \ c = -24\\\\t = \frac{-b + /- \ \ \sqrt{b^2-4ac} }{2a} \\\\t = \frac{-6 + /- \ \ \sqrt{(6)^2-4(4.9\times -24)} }{2(4.9)} \\\\t = 1.68 \ s\)

Thus, the time for the object to reach the ground is 1.68 s.

(2)

The given parameters;

The two times that the object reaches 8m is calculated as;

\(h = ut - \frac{1}{2} gt^2\\\\8 = 20t - 0.5\times 9.8t^2\\\\8 = 20t - 4.9t^2\\\\4.9t^2 -20t+ 8 = 0\\\\\)

\(solve\ the \ quadratic \ equation \ using \ formula \ method;\\\\a = 4.9, \ b = -20, \ c = 8\\\\t = \frac{-b + /- \ \ \sqrt{b^2-4ac} }{2a} \\\\t = \frac{-(-20)\ + /- \ \ \sqrt{(-20)^2-4(4.9\times 8)} }{2(4.9)} \\\\t = 3.63 \ s \ \ or \ 0.45 \ s\)

Learn more here: https://brainly.com/question/13218653

Plutonium= Pu, 94, 244,94,94

Chromium= Cr, 24,52, 24,24

Neon = Ne, 10,20,10,10

Gold= Au, 79,197,79,79

Radon = Ra ,86,222,86,86

The difference between the gravitational force experienced by the top and bottom objects is the force between the top objects is 3 times that of the bottom objects.

Newton's law of universal gravitation states the force of attraction between two objects is directly proportional to the product of the masses and inversely proportional to the square of the distance between the objects.

F = Gm1m2/r²

The bigger the distance of separation, the smaller the gravitational force between the object and vice versa.

The bigger the mass of the objects, the bigger the gravitational force between the objects.

Thus, the difference between the gravitational force experienced by the top and bottom objects is the force between the top objects is 3 times that of the bottom objects.

Learn more about gravitational force here: https://brainly.com/question/72250

#SPJ1

Answer:

16C

Explanation:

since current=CHARGE/TIME

THEREFORE CHARGE=TIME X CURRENT

=2X8

=16C

Answer:

Heat vs temperature - Energy Education The core difference is that heat deals with thermal energy, whereas temperature is more concerned with molecular kinetic energy. Heat is the transfer of thermal energy, whereas temperature is a property the object exhibits.

The power wasted in heating the cables of total resistance 9.0 Ω  is 74365290000 W.

Electric power is the rate at which work is done or energy is transformed into an electrical circuit.

To calculate the electric power wasted in heating the wire, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the power wasted is 74365290000 W.

Learn more power here: https://brainly.com/question/24858512

#SPJ1

Answer:

248 minutes

Explanation:

6200/25=248

This means there is 248 25s in 6200

which means it will take 248 minutes to travel through the river

Also here's a neat trick:

The units for speed is meters/minute

The units for distance is meters

Dividing distance by speed will cancel out the meters and leave only the speed.